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Accepted
Alice
Asked: 2019-01-18 23:46:30 +0800 CST

resolv.conf take a localhost as DNS

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When read /etc/resolv.conf:

me@alpha:~$ cat /etc/resolv.conf | tail -3                                                                                
# operation for /etc/resolv.conf.

nameserver 127.0.0.53

I got the idea of DNS from The Internet: IP Addresses & DNS - YouTube and aware that DNS is Google Public DNS - Wikipedia

How could the default namesever is a localhost address? I guess it impossible accessing to external services.

dns

1 Answers

  1. Best Answer

    In recent Ubuntu releases, domain name resolution is handled by systemd-resolvd, and 127.0.0.53 is only a stub listener created by systemd-resolvd. You can find out the actual DNS server that handles DNS queries by the command

    $ systemd-resolve --status

    Looks for the line that starts with DNS Servers.

    You can learn more about systemd-resolvd from its manpage.

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